'All Men Must Die' is the theme of a Season 4 poster for HBO's 'Game of Thrones.' / HBO

by Bill Keveney, USA TODAY

by Bill Keveney, USA TODAY

HBO's Game of Thrones appears to promise plenty in Season 4 (April 6, 9 p.m. ET/PT), as illustrated by a new poster released Thursday with the heading: "All Men Must Die."

The theme is a translation of the High Valyrian phrase, "Valar Morghulis," which is mentioned in other Thrones art.

The art features a three-eyed crow, a familiar visitor in young Bran Stark's dreams.

In the poster, the bird's body is merged with a seeming latticework of swords, as others fall like needles. A range of interpretations are possible, from the crow being armed to being impaled. The bottom line: Violence is in the offing.